| this is a bit off the subject but i had a pond recently with goldfish in it and there was a massive amount of weed in the pond.
when i harvested it i found there to be many thousands of smaller goldfish in the range of 4-15mm long compared to the majority of fish 5cm long.
this was unusual as id never get so many small ones otherwise if the weed had not been there.
two things sprang to mind.
1 the weed gave the small fish somewhere to hide and so this group didnt get predated upon as they would normally.
2 the weed gave the smaller slower growing or timid fish somewhere to hide and they didnt leave the weed home to venture over to the pond walls to feed and grow larger.
as for your fish a larger pond should mean it would grow faster. |